Speed-regulator for sound recording and reproducing machines.



W. N. DENNISON. SPEED REGULATOR FOB. SOUND RECORDING AND REPRODUGING MACHINES.

APPLICATION FILED PEB.1,]907.

1,0405%. Patented 0ct.8,1912.

3 i a 6/14? 24 iwfi mrwi 1m INVEN'I'OR 11 TTORNE Y.

WILBUEN N. DENNISON, OE MERCHANTVILLE, NEW JERSEY, ASSIGNORTO VICTOR TALKING MACHINE COMPANY, A CORPORATION OF NEW JERSEY.

SPEED-REGULATOR FOR SOUND IRLEIGORiDIISTGr AND REPRODUCING MACHINES.

4 Specification of Letters Patent.

Patented Oct. 8,1912.

Application filed February 1, 1907 Serial No. 355,218.

To all whom it may concern:

Be it known that I, WILBURN N. Denn son, a citizen of the United States, anda resldent of the borough of Merchantville, county f Camden, and State of New Jersey, have invented certain new and useful Improvements in Speed-Regulators for Sound Recording and Reproducing Machines, of which the following is a full, complete,

and exact disclosure.

The objects of this inventlon are, to provide an improved governor; to provide an improved governor by which the speed of a motor may. be regulated to any pre-determined rate within prescribedlimits by simply moving an'index or-finger over a numbered plate to a number corresponding to the speed desired ;I- to provide improved means for adjusting a governor; to provide a governor having'exposed means for varying the speed thereof and concealed means for adjusting the speed varying means,

whereby tampering with or accidental displacement of the adjusting means will be avoided; to provide in a talking machine or other machine a rigid support, and a motor, a governor, and adjusting means for the governor, each secured rigidly to saidsupport to hold said parts rigidly in predeter mined positions of adjustment; and to provide other improvements as will appear hereinafter.

In the accompanying drawings, Figure 1 is a side elevation of a governor or speed regulator constructed in accordance with this invention and applied to a=.talking' machine; Fig. 2 a side elevation of a portion of the same; Fig. 3 a vertical central section of Fig. 2; Fig. 4 atop plan view of a portion of Fig. 3 with attached parts removed; and Fig. 5 a fragmentary top plan view. of a portion of the device.

Referrin to the drawings, one embodiment of this invention comprises a talking machine having a casing 1 of wood or other suitable material, the top or cover of which is provided with an aperture in which is secured a flanged metal late 2, having a lateral extensionB, and a apted to support the usual turntable and its actuating and speed controlling mechanism. The motor or actuating mechanism of the machine may be of any well known or suitable construction, and is located as usual within thecasing 1, being supported an arm 4: 1 th suitable means depending from the plate 2. The turntable or record support is mounted as usual above the casing upon the upper end of a vertical spindle 5 which is journaled in the plate 1, and extends downwardly into the casing and is operatively connected to the motor of the machine to bev rotated thereby. The turntable and the motor are not shown as these parts may be of any well known construction.

For controlling the speed of the machine, any well known or suitable governor may be used. In the construction illustrated, a friction governor of the well known fly ball typeisused, and comprises an arm 6 which depends from the plate 2, and the lower end of which supports the lower end of a vertically arranged governor shaft 7, the upper end of which is 'journaled in a bearing 8, upon the under side of the plate 2.

Upon the lower end of the governor shaft '7 is fixed a collar 9, and slidably mounted upon the upper end of the governor shaft is a collar 10. These two collars are connected by means of spring members 11, each carrying a governor ball 12, and upon the upper face of the movable collar 10, is fixed a friction or brake disk 13. The governing shaft 7 is driven by a pinion 1i fixed upon the upper end thereof and engaging with a gear 15 mounted upon the turntable shaft 5, which is driven by the motor of the machine. Below the friction disk 13 and spaced in close proximity thereto is a ring 16 carrying brake shoes or pads 17. This ring is pivotally supported between the outer ends of arms 18 of a yoke forming the inner end of a brake lever 19, the said, lever 19 being fulcrumedto the side of the arm 6 by means of a screw or pivot 20. The outer end 21 of the brake lever is provided with an oif-set 22 arranged to form a follower to be act-uated as will be explained hereinafter, to control the s eed of the governor.

Forad usting or controlling the speed of y the governor, an index shaft 23, is rotatably mounted in a fixed index sleeve 24, which is rigidly mounted in .an aperture in the lateral extension 3 of the plate 2, which sup ports the governoras heretofore explained.

' This index shaft 23 has a reduced upper end 25 provided with screw threads, over which is keyed an index or finger 26, extending at ri 'ht angles tothe axis of the shaft, and hid in, engagement with the upper shoulagainst ti upper surface ofthe lateral ex-' Eda der of the shaft by means of a nut 27 whichengages over the threaded portion of the shaft. The index 26 bears against the upper tension 3 of the plate.

The index shaft 23 has an enlarged lower end forming a shoulder 31, bearing against the lower end of the index sleeve 24. The lower end of the shaft '23 is counter-sunk axially and is provided with an upwardly extending adjusting screw'32, threaded axially into the shaft, and a spiral spring 33 surrounding the screw 32 and within said counter-sunk portion.

Slidably mounted upon the lower end of:

the indexshaft 23 is a cam head 34, having" substantially the form of a stepped cylinder, the upper and smaller end of which is recessed to receive the lower end of the index shaft, and the lowervlar'ger end of which is cupped and has a downwardly faciug inclined edge 85 forming a cam termi-' nating in an oppositely inclined shoulder 35, connecting the uppermost and lowermost points of the 'cam by a gradual descent which permitsof the passagevof a cam follower ov'erthe shoulder without causing shock tending to disarrange the mechanism.

Between the upper and lower recessed portions of the cam head34, extends a web 38 through which extends 'the adjusting screw The spring 33 engagesagainst the upper surface of the web and tends to keep the web in engagement against the upper surface of the head of the screw, A keyway 37 is provided in the lower end of the index shaft 23 and a pin or key 37' projects inwardly from the head 34 to engage in the keyway to prevent the head from rotating with respect to the shaft, but to permit the head to slide longitudinally thereon. The inclined edge or cam'35 of the cam head bears against the outer end 22 .of the brake lever 21, and through the lever controls the position of the brake'shoes and the speed of themotor.

In the operat on of this device, adjust- ,ment is madebv means of the adjusting screw 32 in the lower end of the index shaft,

until itis found that the speed of the turntable corresponds withthe indications upon the dial when the index or finger isset'at ipa eaa any particular division. In the arrangement illustrated in the drawings the governor and regulator depend from the cover .of the-casing, and to adjust the regulator it is necessary to lift the cover, and the regulator is thus normally concealed and protected from accidental displacement. 1 After this adjustment isefi'eotedthe indexor finger 26 is moved to register with the division on the dial corresponding to the speed desired, thus rotating the cam'against the brake lever and forcing the brake pads I oi shoes 17 into a predetermined position where they will engage with greater or less 'force'against the friction disk 13, to "controi Btl in a well known manner, the speed of the governor. i i

' Although onlyone embodiment of this inventionhas been illustrated herein, it-zis obvious that this invention might also be '85 applied to other forms of machines than: the one shown, and that various changes might bemade in the construction shown to, adapt it to various purposes,and for other reasons, without departing from the spirit 9 .of this 'inventon or the scope of the appended claims.

Havin thus fully described my invention',, I c aim and desire to protect by ,Letters Patent of the United States 13A speed regulator comprising a governor, a fixed member,;a rotatable actuating member carried by said fixedmember upon a fixed axis, coincident with the geometrical axis of said rotatablemember, and fixed in 10 position longitudinally of its axis of rotation, and means mounted upon and rotated by said rotatable member and adjustable. thereon for regulating the speed of the governor. 2A speed regulator, comprising a governor, a fixedmember, a rotatable actuating member carried by said fixed member upon a fixed axis, coincident with the geometrical axis of said rotatable member-and fixed in position longitudinally of its axis of rota- 1 tion, and a cam mounted upon and rotated. by said rotatable member and adjustable thereon for regulating the speed of the governor. v i '8. A speed regulator, comprising a gov ernor, a fixed. member, a rotatable actuating member carried by said fixed member upon a fixed axis, coincidentwith the geometrical axis of said rotatable member, and fixed in position longitudinally of'i-ts axis of rotation, and a 'cam' niountedjupon-said rotatablef member and actuatedthereby and adjust able longitudinally of the axis of rotation thereof for regulating the speed of the gov-' ernor. v 4. A speed regulator, comprising a governor, a fixed member, a rotatablememben carried by said fixed member, a cam -carried by, said rotatable member and lfi'djaistabli m9 vvay provided therefor between said cam and said rotatable member to hold said cam slidably in position for regulating the speed of the governor.

5. A speed regulator, ernor, a fixed member, carried by said fixed member, a cam carried by said rotatable member, and means for adj usting said cam longitudinally with respect to the axis of said rotatable member, said means comprising a screw and a spring.

6. A speed regulator, comprising a gov ernor, a rotatable actuating rrember mounted upon a fixed axis,

comprising a govcoincident with'the 1ongitudinal axis of said rotatable member, a

cam rotated by said rotatable member, and

adjustable longitudinally with respect to the axis of rotation thereof, and means whereby when said actuating member is stationary, said governor will be controlled to rotate at a predetermined rate. l

7. A speed regulator, comprising a governor, a rotatable member, a fixed member carrying said rotatable member, a cam slidably mounted upon one end of said rotatable member, a screw adjustable in said rotatable member for limiting the longitudinal motion of the cam in 'one direction and a spring between said rotatable member and said cam for holding said cam in engagement with said screw.

8. A speed regulator comprising a governor, a fixed member, a rotatable actuating member carried by said fixed member upon a fixed axis, coincident with the geometrical axis of said rotatable n'ember' and fixed in 1 position longitudinally of its axis of rotation, and means mounted upon and rotated by said rotatable member and adjustable longitudinally thereof for regulating the speed of the governor.

9. A speed regulator, comprising a governor, a. fixed sleeve provided with a dial at one end and having its opposite end threaded. a nut upon said threaded end to retain the sleeve in position, a shaft rotatably mounted within said sleeve. said shaft having one end reduced and threaded, and its oppdsitecnd enlarged to form a shoulder bearing against one end of said fixed sleeve, an index fixed upon said reduced end and a cam adjustably mounted upon said enlarged end for regulating the ernor.

10. A speed regulator, comprising a governor, a fixed sleeve provided with a dial a.- one end and having its opposite end threaded, a nut upon the threaded end to retain the sleeve in position, a shaft rotatablv mounted within said fixed sleeve, said shaft having, one end reduced and threaded, and its opposite end enlarged and counter-- sunk, a screw engaging said enlarged end a rotatable member threaded, a

speed of the govthrough said counter-sunk portion, yielding meansseat'ed in said counter-sunk portion surrounding said screw, a cam adjustably mounted upon said enlarged'cnd and held in position by means of said screw and said yielding means, and means between said cam and said governor whereby the speed is varied in accordance with the rotation of said shaft as shown by the index of said dial.

11. A speed regulator, comprising a governor, a fixed sleeve provided with a dial at one end and having its opposite end nut upon said threaded end to retain the sleeve in position, a shaft rotatably mounted within said fixed sleeve, said shaft having one end reduced and threaded, and its opposite end enlarged and countersunk, a-serew engaging said enlarged end through said counter-sunk portion, yielding means seated in said counter-sunk end surrounding said screw, a

sliding in a key-way, said cam being held in position longitudinally by means of said yielding means and screw, and-means between said cam and said governor-whereby the speed of said governor is varied in accordance with the rotation of said shaft as shown by the index upon the dial.

12. A speed regulator, comprising a governor, a fixed member, a shaft rotatably mounted thereby, a head adjustably secured to one end of said shaft and having a cupped outer end with inclined edges forming a cam, and means between the cam and said governor whereby the speed of said governor is varied in accordance with the rotation of said shaft.

M 13. A speed regulator comprising a governor, a fixed member, a shaft rotatably mounted by said fixed member. a head slidably mounted upon said shaft, said head having one end counter-sunk to fit over the end of the said shaft and its opposite end cupped and provided with inclined edges forming a cam, means for adjusting the head in various positions upon the shaft, and means between the .head and governor whereby the speed of the governor is varied in accordance with the amountof rotation of said shaft.

14. A speed' regulator, comprising a governor, a fixed member, a shaft rotatably mounted by said fixed member, a head slidably mounted upon said shaft, said head having one end counter-sunk to fit over the end of the shaft, and its opposite end cupped and provided with an inclined edge forming a cam, means for adjusting the head in variouspositions upon the shaft and means between the head and governor whereby the speed of the governor is varied or entirely' checked in accordance with the rotation of and screw and a key sliding n akey-way.

cam slidably mounted upon sald enlarged end by meansof a key 15. A speed regulator, comprising a gov ernor, a' rotatablemember, a fixed member carrying said rotatable member, a cam rarried by said rotatable member, and a srrew 3 and a spring for adjusting said ram to vary at one end and having its opposite end.

threaded, a nut'upon saidthreaded end to retam the sleeve m position, a shaft rotata-bly mounted \vithinsaid sleeve, said shaft v 1 ernor, a fixed sleeve provided with a dial at having one endthreaded and its opposite end enlarged to form a shoulder bearing against one end of said fixed sleeve, an index fixed upon said threaded end, anda cam upon said enlarged end for regulati g th speed of the govorno 17. A speed regulator, comprising a governor, a cam mounted to yield 1n one direction but fixed in the opposite direction for controlling the speed of the governor, and means whereby when said cam is held in'a fixed position said governor will he re strained to move at a predetermined rate.

18. A speed regulator, comprising a gov.- e-rnor, a rotatable shaft, a cam .slidably mounted upon said shaft for varyingthe speed of said governor, said cam being yieldingly restrained in one direction and fixed in the opposite direction, and means whereby When said shaft is held in a'fixed position said governor will be restrained. to re tate at a predetermined rate.

19. A speedregulator, comprising a gov. ernor, arotatable shaft, a cam splined to said shaft and yieldingly restrained with respect to 'said shaft in one direction but fixed in the opposite direction, to control the speed of the governor, and means whereby When said cam is held stationary said governor will be restrained to move at a predetermined rate. f I

20. In a speed-regulator, the combination with an index rotatable about a fixed axis and a graduated index plate, of a. governor, yielding means rotatable with said index for varying the speed of the governor, and means for adjusting the position of said speed varying means to 0: use the governor to rotate at SPOOdS COlltSl'iUIldll'lQ to the graduatlons on sa d plate.

21. In a speed regulator, the eombiimtimi with an index rotatable ab ut a fixed axis.

of a governor, yielding means rotatable with said index for varying the speed of the governor, and means for adjusting the position of said speed varying means to eanse the governor to rotale at speeds rorrespoiuliug to the indications of said index.

22A speed regulator eonnn-isiug a govone end and having its opposite. end threadsaid fixed sleeve, and means panama shaft for regulating the speed of the governor.

23. A. speed regulator'eoinprising a governor, a fixed sleeve provided with a dial at one end and having its opposite end threaded, a nut upon said threaded end to retain said sleeve in position, a shaft rotz.- tably mounted in said sleeve. an index earried by said shaft, adjacent said diah. a shoulder upon said shattbeariug against one end of said fixed sleeve, and a (mu upon said shaft for regulating the speed of the governor.

24. A speed regulator (-oniprIsuig a governor. a fixed sleeve provided Wllll a dial at- .one end, a shaft rotatably mounted within I Entries of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' i Washington, D. G. i

edfa nut upon said threaded end to retain 

